Nectar: Nectar is a sweet liquid produced by flowers as a reward for pollinators. It attracts them and encourages them to visit different flowers.
Cross-pollination: Cross-pollination occurs when pollen is transferred between flowers of different plants. This promotes genetic diversity in plant populations.
Wind pollination: Some plants rely on wind to carry their pollen from one flower to another instead of relying on animals. Examples include grasses and many trees.